Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

June 15, 2021Okaloosa County, Florida

NWS Mobile, AL issued this special weather statement at Jun 15, 2021, 2:20 PM CDT for Okaloosa County, Florida. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 15, 2021, 2:20 PM CDT (19:20 UTC)
Expired
Jun 15, 2021, 2:45 PM CDT
In force
25 min
Issued by
NWS Mobile, AL

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 49 km from the middle of the area, began a volume at 19:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.3 hours before the alert went out and 204 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2021-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2073 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2073 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
942 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

903 
WWUS84 KMOB 151920
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
220 PM CDT Tue Jun 15 2021
 
FLZ205-206-151945-
Okaloosa Inland FL-Okaloosa Coastal FL-
220 PM CDT Tue Jun 15 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL OKALOOSA COUNTY UNTIL 245 PM CDT...

At 220 PM CDT, the strong thunderstorm was located 5 miles northeast
of Niceville. This storm was nearly stationary.

Wind gusts of 40 to 50 mph will be possible with this storm.

This storm will remain over mainly rural areas of east central
Okaloosa County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3045 8640 3046 8641 3045 8642 3048 8644
      3050 8645 3050 8642 3051 8642 3051 8645
      3062 8651 3062 8639 3045 8639
TIME...MOT...LOC 1920Z 350DEG 1KT 3055 8640 

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 1:16 PM CDTSpecial Weather StatementMOBMobile29 min
Jun 15, 1:17 PM CDTSpecial Marine WarningMOB58 min
Jun 15, 1:31 PM CDTSpecial Marine WarningMOB59 min
Jun 15, 1:48 PM CDTSevere Thunderstorm WarningMOBMobile42 min
Jun 15, 1:53 PM CDTSpecial Marine WarningMOB97 min
Jun 15, 2:00 PM CDTSpecial Marine WarningMOB60 min
Jun 15, 2:28 PM CDTSpecial Marine WarningMOB62 min
Jun 15, 2:30 PM CDTSpecial Marine WarningMOB60 min
Jun 15, 2:37 PM CDTSevere Thunderstorm WarningMOBBaldwin38 min
Jun 15, 3:04 PM CDTAreal Flood AdvisoryMOBBaldwin116 min
Jun 15, 3:10 PM CDTSpecial Marine WarningMOB84 min
Jun 15, 4:03 PM CDTSpecial Marine WarningMOB87 min
Jun 15, 5:36 PM CDTSpecial Marine WarningMOB54 min
Jun 15, 1:32 PM CDTSpecial Weather StatementMOBEscambia28 min
Jun 15, 2:17 PM CDTSpecial Weather StatementMOBEscambia28 min
Jun 15, 2:42 PM CDTSpecial Weather StatementMOBEscambia33 min
Jun 15, 2:45 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa45 min
Jun 15, 3:30 PM CDTSevere Thunderstorm WarningMOBOkaloosa24 min
Jun 15, 3:33 PM CDTAreal Flood AdvisoryMOBOkaloosa57 min

Nearby

Special Weather Statements in Florida, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.